WUCN15 CWWG 210151

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ALBERTA

UPDATED BY ENVIRONMENT CANADA

AT 7:51 P.M. MDT THURSDAY 20 AUGUST 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= VULCAN CO. NEAR CARMANGAY AND CHAMPION

=NEW= CO. OF LETHBRIDGE NEAR COALHURST NOBLEFORD AND BARONS

      M.D. OF WILLOW CREEK NEAR CLARESHOLM AND STAVELY.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      M.D. OF WILLOW CREEK NEAR NANTON AND PARKLAND.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 8:29 P.M. MDT.



AT 7:50 P.M. MDT, A SEVERE THUNDERSTORM IS LOCATED NEAR 

STAVELY. THIS SEVERE THUNDERSTORM IS MOVING EAST AT 25 

KM/H. DAMAGING WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN 

ARE POSSIBLE.



TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 

PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. 



SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 

THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN. 



LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. 



PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY 

ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO 

ABSTORM(AT)EC.GC.CA, CALL 1-800-239-0484 OR POST REPORTS ON SOCIAL 

MEDIA USING (HASH)ABSTORM.



HTTP://WEATHER.GC.CA



END/PASPC